This idea is to have the ability to VETO a dungeon from every roulette. Possibly not the Expert Roulette as it only consists of 2, but all of the others. This could work similarly to the ⃠ that was added to the Journal to remove quests from appearing.
Not surprisingly this flagrantly selfish behavior by a map owner appalls me and completely kills the excitement
PvP is a minority activity in FFXIV (as in most similar games). Sometimes, your queue is long simply because there aren't enough players available for a match (across all GCs).